What is the expected battery life of my Dana and how do I
get the longest life out of my Dana rechargeable battery?
Estimated Dana battery life:
- Normal use: 25+ hours or more.
- Backlight and WiFi on: 10 hours or less.
Charging a rechargeable device:
Danas rechargeable batteries use Nickel Metal Hydride
(NiMH) cells. NiMH cells can be charged about 500 times.
New NiMH batteries need to be cycledalso known as
conditionedthree to five times before they hold a full charge. This means
that, during the first three to five charge cycles, the batteries hold a
successively better charge each time until they reach full capacity.
To condition the batteries:
1) Fully charge
your Dana with the AC adapter.
2) Use your Dana
without the AC adapter until the low battery message appears.
3) Repeat steps 1
and 2 three to five times.
Youll get the longest life from your batteries if you wait
for the low battery warning to appear onscreen so the batteries arent needlessly
recharged. Charging with the AC adapter for about 816 hours fully charges it;
if you charge it with an AlphaHub or USB cable, it may take as long as 24
hours. The charge algorithm of Dana prevents the batteries from being over
charged if left connected after a full charge is achieved.
Storing and recharging Danas:
Rechargeable batteries that arent used over time self
discharge. That is, they lose their charge and need to be fully charged again
before being used. If the batteries self discharge too much while in storage
(which can happen if you store your Dana for longer than you intended), the
batteries themselves may become damaged, which in turn can damage the device.
Important: If youre going to store your Dana for a
month or longer, charge it before you store it, and then again after you take
it out of storage to compensate for the batteries self discharge. Also be
sure to backup any programs and/or files because they will be lost if the
batteries fully discharge.
Lifetime of the rechargeable batteries:
AlphaSmart rechargeable batteries last a long time, but they
dont last forever. Well-maintained rechargeable batteries last about 500
charges, or about three years.